Scale.



EKLUND.

SCALE.

APPLICATION yuan rm. 26, 1912.

Patented Nov. 4, 1913.

WITNESSES:

- \NVENTOR. Mm 45. @flam7fl1 S. E. EKLUND.

SCALE.

APPLICATION FILED FEBv 26,1912.

Patented Nov. 4, 1913.

1 NV E NTO R WITNESSES:

?ATENT EFTCE.

s'i'oii's" E; EKLUND, or TOLEDO; OHIO.

SCALE.

Specification of Letters rate.

Application filedFebruary 26, 1912. Serial No. 680,076.

To all whom it may con-(gem Be it known that I", STONE E..EKLUND, a citizen of the United States, and a resident of Toledo, in the county of Lucas and State of Ohio, have invented a certain new anduseful. Scale; aimhI do hereby declare the following tube a full, clear, and exact description of the inventiomsuch as will enable others-skilledin'the art to-wliich it appertains to make and use the same, reference being'had to the accompanying draw-, 'in'gsyand to the characters of reference marked thereon, which form a part of this specification.

My inventionrelates to scales, and par-' ticularly to counter 'or similar scales, but is not restricted to such use, as it may be used in any connection for 'which it isadapted. In'-scales of this class it has been customary to "rovide the scale-levers thereof with two weights, namely, a major weight, which is usually fixed to the short: arm-of the lever, and a pendulum'weight, which is usually attached, through a cam and ribbon con-- nection, to the opposite end of the lever from that carrying the major weight, and which normally hangs in neutral position, or about 7 from neutral position, Con siderable experimenting has been done by scale builders in an endeavor to eliminate the necessity of using such major weight, as its presence on thescale-lever is objectionable due to the wear and friction occasioncd. thereby on the fulcrum points of the lever, and also to the clumsy and heavy appearance which the presence of a large weight (usually an eighteen pound weight for a twenty-four pound scale) gives to the scale.

The object of my invention is to overcome and eliminate such objectionable features from scales of this character, and also to simplify, lighten and chcapen the construction thereof, whereb to enhance the practicability and commercial value of such scales.

A further object of my invention is to overcome an inaccuracy which is found to be present in scales of this character, as hereinafter more fully described.

The invention is fully described in the following specification, and while, it its broader aspect, it is capable of embodiment in numerous forms, a preferred embodim nt Qarm within the hollow of the standard 2, and attached, through the medium of a connectt-hereof is illustrated in the accompanying drawings, in which 7 Figure 1 1s a rear elevation of"- a scalerem- .bodying my invention. Fig. 2 is'a side eleva tion thereof, and Figf3-is a plan of the scalelever employed. Q

Referring to the drawings, 1 designates the base of a scale, 2 the hollow pendulumhousingor standard, which rises from the forward end ortion of thehase and supports the housing 3 in-which tlie computing Paton tedlNo'v. 4. 1913;-

cylinder 1 is mounted, 5 the scale lever, 6 the platter, which is cari'icd-by the lever, and 7 a forked bearing standard, which rises from the rear end'portion of the base and: carries the scale-lever, all of which parts are common in one form or another inscales ofi'this character.

The scale-lever 5 is shown,in the prssentinstance, ;as having its major or body portion of rectangular frame form, see Fig. 3, and provided with the customary knife-edge fulcrum-studs 8 projecting fromopposite sides thereof adjacent to its rear emf for hearing on the respective arms-of the standard 7, and is provided inadvance of such studs with similar knifeedge studs 9 upon which the platter-supporting frame 10 has its bearings, as well understood in the art.

The forward end of the lever body has an 5" projecting forwardly therefrom,

ing loop 11 and metal ribbon 12, with the cam 13 at the upper end of the pendulum 14, inthe usual manner, to cause a lowerin of the forward end of the scale-lever to e ect a raising of the lower weighted end of the pendulum in an arc of a circle from its normal position, as well understood in the art. The pendulum has knife-edge pivot-studs 15 mounted in suitable bearings 16 within the. standard. The lever 5 is also shown as having an arm 5 projecting therefrom for attaching to the rack-bar 17 customarily employed for cotiperating with apinion 180m the computing cylinder shaft to communicate rotation to such cylinder from a movement of the scale-lever, if such cylinder is used.

In carrying out the feature comprising my invention, I eliminate the weight, which it has heretofore been the practice to attach to the rear end or short arm of the scalelever, and in lieu thereof adjust the pendulum 14 relative to the scale-lever so that it will preferably. normally hang approximately40 oil' the vertical plane with its axis, as shown in Fig. 1', instead of 0,or between O and7,as has heretofore. been tbecase The pendulum 14 normally stands in the initial inclined position shown in the figures by reason of its being in equilibrium with the scale beam and other poising elements .when in such position. Vith this arrangement, the objectionable major weight of the scalelever is .not, only rendered unnecessary but it is found in practice that the inaccuracies in weighing, which are present with the old form of scale referred to, are entirely overcome.- This adjustment of the pendulum also causes a sufiicient weight or pull upon the ribbon 12 under normal conditions, or when the pendulum is at its lowered at-rest position, soas to maintain such ribbon taut at all'timcs, whereas with the oldadjustment thereof anfins'ufiicient pull was exerted upon the ribbon 12 to prevent the presenc'e of loops of, slaclcne ss therein, thus in the latter case contributing largely to the inaceiiracies present in scales of this character. rlvhile I have shown and described my invention'in association' with a particular type and construction of scale, it is to be under stood that its scope is not so limited, and that it'is intended for use in any connection for. which it may be adapted or appropriate) Having thus described my invention what I claim as new, and desire to secure by Letters Pa tent,'is, 5 1

1 Ina scale of the character described, a scale lever carrying an article supporting a scale lever comprisingian :op'enrectangu means fulcrumed adjacent one end in a fixed 40 support a pendulum weight also fulcrumed in a fixed support having a cam projection and a ribbon connecting the same with the free end of-the vertical lever, said fulcrum weight being held in poise atan inclination. to a. vertical plane in the normal zero position of the parts by the weight'of said scale lever and the article supporting means and serving the double purpose of a counter poise for said parts and as a counterweight for articles to be weighed.

2. In a scale, the combination of a base, a rigid bearing atlixed to one endj of said base 1 and having a forked upper end, a hollow casing secured to the other end of the base, a pendulum weight'julcrumed in said cas-L ing, a cam carried by said pendulumweight lar frame from opposite sides of; wlf'h pro ject knifeedge studs' .5upported.fo h forked upper end ofth 'rigidbearin arm pro ecting-fronfls' idgleve easing, a ribbon 10r1lik flexible -on'n'ecti o between sajid 'arm and th fcam carriedlby pendulum lever, a is studs projecting fr lel to the first-named tuds a arti p" porting platformfcarrie by-Said econdv mentioned knife-edge lids," arms projecting" outwardly from StliClE-lBVGl frame and ,tare beam connected to said arms, In testimony whereo flw; I" have hereunto signed my nan1e 'to tliis specificatiori in the presence of two subscribing witnessw.

STONE EI-fEKLUND L \Vitnesses:

C. V. Owen, lit. Q. Orranrmur. 

